Cita APA (7a ed.)

Jahn, A. F. (2013). The singer's guide to complete health. Oxford University Press.

Cita Chicago Style (17a ed.)

Jahn, Anthony F. The Singer's Guide to Complete Health. New York: Oxford University Press, 2013.

Cita MLA (9a ed.)

Jahn, Anthony F. The Singer's Guide to Complete Health. Oxford University Press, 2013.